Consider the term $9x^8$9x8.
What is the coefficient of $9x^8$9x8?
What is the exponent?
Consider the expression $5y^3$5y3.
Consider the expression $-2a^3$−2a3.
Consider the expression $-5y^9-y$−5y9−y.
Recognize a polynomial expression; recognize the equation of a polynomial function, give reasons why it is a function, and identify linear and quadratic functions as examples of polynomial functions